3p^2-18p-4=0

Simple and best practice solution for 3p^2-18p-4=0 equation. Check how easy it is, and learn it for the future. Our solution is simple, and easy to understand, so don`t hesitate to use it as a solution of your homework.

If it's not what You are looking for type in the equation solver your own equation and let us solve it.

Solution for 3p^2-18p-4=0 equation:


Simplifying
3p2 + -18p + -4 = 0

Reorder the terms:
-4 + -18p + 3p2 = 0

Solving
-4 + -18p + 3p2 = 0

Solving for variable 'p'.

Begin completing the square.  Divide all terms by
3 the coefficient of the squared term: 

Divide each side by '3'.
-1.333333333 + -6p + p2 = 0

Move the constant term to the right:

Add '1.333333333' to each side of the equation.
-1.333333333 + -6p + 1.333333333 + p2 = 0 + 1.333333333

Reorder the terms:
-1.333333333 + 1.333333333 + -6p + p2 = 0 + 1.333333333

Combine like terms: -1.333333333 + 1.333333333 = 0.000000000
0.000000000 + -6p + p2 = 0 + 1.333333333
-6p + p2 = 0 + 1.333333333

Combine like terms: 0 + 1.333333333 = 1.333333333
-6p + p2 = 1.333333333

The p term is -6p.  Take half its coefficient (-3).
Square it (9) and add it to both sides.

Add '9' to each side of the equation.
-6p + 9 + p2 = 1.333333333 + 9

Reorder the terms:
9 + -6p + p2 = 1.333333333 + 9

Combine like terms: 1.333333333 + 9 = 10.333333333
9 + -6p + p2 = 10.333333333

Factor a perfect square on the left side:
(p + -3)(p + -3) = 10.333333333

Calculate the square root of the right side: 3.214550254

Break this problem into two subproblems by setting 
(p + -3) equal to 3.214550254 and -3.214550254.

Subproblem 1

p + -3 = 3.214550254 Simplifying p + -3 = 3.214550254 Reorder the terms: -3 + p = 3.214550254 Solving -3 + p = 3.214550254 Solving for variable 'p'. Move all terms containing p to the left, all other terms to the right. Add '3' to each side of the equation. -3 + 3 + p = 3.214550254 + 3 Combine like terms: -3 + 3 = 0 0 + p = 3.214550254 + 3 p = 3.214550254 + 3 Combine like terms: 3.214550254 + 3 = 6.214550254 p = 6.214550254 Simplifying p = 6.214550254

Subproblem 2

p + -3 = -3.214550254 Simplifying p + -3 = -3.214550254 Reorder the terms: -3 + p = -3.214550254 Solving -3 + p = -3.214550254 Solving for variable 'p'. Move all terms containing p to the left, all other terms to the right. Add '3' to each side of the equation. -3 + 3 + p = -3.214550254 + 3 Combine like terms: -3 + 3 = 0 0 + p = -3.214550254 + 3 p = -3.214550254 + 3 Combine like terms: -3.214550254 + 3 = -0.214550254 p = -0.214550254 Simplifying p = -0.214550254

Solution

The solution to the problem is based on the solutions from the subproblems. p = {6.214550254, -0.214550254}

See similar equations:

| 6y+2+1=-6y | | -5c(c-2)=20-5c+10 | | 15.82=x*(1-x) | | (25)(7)+b=175 | | 51=9.50x | | 45u+2=5u-97-21 | | 4y-2+y+14=6+8y+14-5y | | (5x+7y)2+9x-2y=(-8y+3)3 | | 100+4k=-4k+44 | | 31=6.30x | | 3(x+3)=5x-6 | | 7m+9=36 | | 35-X=29 | | 7+26x+2=-1x | | 12.4=3w+8-.5w | | -6a+3=-3a(2a-1) | | 96y-72=21y+46 | | 12x^2-15x+8x-10=0 | | 0.50+4= | | 9x-3(1x+6)=2(1x+1) | | -6(4x+3)=-6(4x+3) | | x^3+x^2-8x=0 | | 3y-15=2y+10 | | 15w+6=4-5w | | -10(5+m)=63 | | 6(-3-2x)=14 | | 5t-3=2t+4t | | 1.801=12x | | 9+15t-1=6t+73-4t | | 0.2n+3=86 | | 3(.2x-1)=1-.6(x+1)+1.3x | | 4y^2+4y=1 |

Equations solver categories